the sum of the first and third term of a GP is 20 and sum of its first three terms is 26 .find the progression
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sum of first 3 terms- sum of first and 3rd term = 2nd term = 6
a+d =6
a+a+d+a+2d =26
3(a+d)=26
but when we put a+d =6 in this, we find that LHS isn't equal to RHS. I think your question is wrong.
a+d =6
a+a+d+a+2d =26
3(a+d)=26
but when we put a+d =6 in this, we find that LHS isn't equal to RHS. I think your question is wrong.
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